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New API call burn_read_audio

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This commit is contained in:
Thomas Schmitt 2012-11-30 19:34:33 +00:00
parent 1a74a05965
commit bb409500ed
3 changed files with 45 additions and 47 deletions
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2
cdrskin/cdrskin_timestamp.h
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@ -1 +1 @@
#define Cdrskin_timestamP "2012.11.29.112605"
#define Cdrskin_timestamP "2012.11.30.193330"

85
libburn/libburn.h
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@ -3782,6 +3782,50 @@ int burn_read_data(struct burn_drive *d, off_t byte_address,
char data[], off_t data_size, off_t *data_count, int flag);
/* ts B21119 */
/** Read CD audio sectors in random access mode.
The drive must be grabbed successfully before calling this function.
Only CD audio tracks with 2352 bytes per sector can be read this way.
I.e. not data tracks, not CD-video-stream, ...
Note that audio data do not have exact block addressing. If you read a
sequence of successive blocks then you will get a seamless stream
of data. But the actual start and end position of this audio stream
will differ by a few dozens of milliseconds, depending on individual
CD and individual drive.
Expect leading and trailing zeros, as well as slight truncation.
@param d The drive from which to read.
It must be a real MMC drive (i.e. not a stdio file)
and it must have a CD loaded (i.e. not DVD or BD).
@param sector_no The sector number (Logical Block Address)
It may be slightly below 0, depending on drive and
medium. -150 is a lower limit.
@param data A memory buffer capable of taking data_size bytes
@param data_size The amount of data to be read. This must be aligned
to full multiples of 2352.
@param data_count The amount of data actually read (interesting on error)
@param flag Bitfield for control purposes:
bit0= - reserved -
bit1= do not submit error message if read error
bit2= on error do not try to read a second time
with single block steps.
bit3= Enable DAP : "flaw obscuring mechanisms like
audio data mute and interpolate"
bit4= return -3 on SCSI error
5 64 00 ILLEGAL MODE FOR THIS TRACK
and prevent this error from being reported as
event message. Do not retry reading in this case.
(Useful to try the last two blocks of a CD
track which might be non-audio because of TAO.)
@return 1=sucessful , <=0 an error occured
with bit3: -2= permission denied error
@since 1.2.6
*/
int burn_read_audio(struct burn_drive *d, int sector_no,
char data[], off_t data_size, off_t *data_count, int flag);
/* ts A70904 */
/** Inquire whether the drive object is a real MMC drive or a pseudo-drive
created by a stdio: address.
@ -4011,46 +4055,5 @@ int burn_nec_optiarc_rep_err_rate(struct burn_drive *d,
#endif /* Libburn_develop_quality_scaN */
/* Early experimental:
*/
#define Libburn_with_read_audiO
#ifdef Libburn_with_read_audiO
/* ts B21119 */
/** Read CD audio sectors in random access mode.
The drive must be grabbed successfully before calling this function.
Only CD audio tracks with 2352 bytes per sector can be read this way.
I.e. not data tracks, not CD-video-stream, ...
@param d The drive from which to read.
It must be a real MMC drive (i.e. not a stdio file)
and it must have a CD loaded (i.e. not DVD or BD).
@param sector_no The sector number (Logical Block Address)
@param data A memory buffer capable of taking data_size bytes
@param data_size The amount of data to be read. This must be aligned
to full multiples of 2352.
@param data_count The amount of data actually read (interesting on error)
@param flag Bitfield for control purposes:
bit0= - reserved -
bit1= do not submit error message if read error
bit2= on error do not try to read a second time
with single block steps.
bit3= Enable DAP : "flaw obscuring mechanisms like
audio data mute and interpolate"
bit4= return -3 on SCSI error
5 64 00 ILLEGAL MODE FOR THIS TRACK
and prevent this error from being reported as
event message. Do not retry reading in this case.
(Useful to try the last two blocks of a CD
track which might be non-audio because of TAO.)
@return 1=sucessful , <=0 an error occured
with bit3: -2= permission denied error
@since 1.2.6
*/
int burn_read_audio(struct burn_drive *d, int sector_no,
char data[], off_t data_size, off_t *data_count, int flag);
#endif /* Libburn_with_read_audiO */
#endif /*LIBBURN_H*/

5
libburn/read.c
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@ -540,8 +540,6 @@ ex:;
}
#ifdef Libburn_with_read_audiO
/* ts B21119 : API function*/
int burn_read_audio(struct burn_drive *d, int sector_no,
char data[], off_t data_size, off_t *data_count, int flag)
@ -644,9 +642,6 @@ ex:
}
#endif /* Libburn_with_read_audiO */
#ifdef Libburn_develop_quality_scaN
/* B21108 ts */